| From: | Matteo Beccati <php(at)beccati(dot)com> |
|---|---|
| To: | Claudio Freire <klaussfreire(at)gmail(dot)com> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Sören Meyer-Eppler <soerenme(at)google(dot)com>, pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: PostgreSQL 9.0.4 blocking in lseek? |
| Date: | 2011-12-28 18:41:53 |
| Message-ID: | 4EFB62F1.2000700@beccati.com |
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| Lists: | pgsql-performance |
On 28/12/2011 19:07, Claudio Freire wrote:
> On Wed, Dec 28, 2011 at 3:02 PM, Matteo Beccati <php(at)beccati(dot)com> wrote:
>> The query eventually completed in more than 18h. For comparison a normal
>> run doesn't take more than 1m for that specific step.
>>
>> Do you think that bad stats and suboptimal plan alone could explain such
>> a behaviour?
>
> Did you get the explain analyze output?
Unfortunately I stopped it as I thought it wasn't going to return
anything meaningful. I've restarted the import process and it will break
right before the problematic query. Let's see if I can get any more info
tomorrow.
Cheers
--
Matteo Beccati
Development & Consulting - http://www.beccati.com/
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